空气源NTP喷射系统再生EGR冷却器试验研究
发布时间:2018-01-16 20:01
本文关键词:空气源NTP喷射系统再生EGR冷却器试验研究 出处:《农业机械学报》2016年01期 论文类型:期刊论文
【摘要】:以压缩空气为气源,建立了低温等离子体(NTP)喷射系统再生废气再循环(EGR)冷却器的试验系统,在不同的再生温度下进行EGR冷却器的再生试验,通过测量再生过程中主要活性物质(NO2、O3)以及再生产物COx的变化情况,分析了再生温度对EGR冷却器再生的影响。试验结果表明:空气源NTP能在18~300℃的温度范围内实现EGR冷却器再生。再生过程中,O3和NO2均随着温度的升高而降低,在150℃时被完全消耗。再生过程产生的CO较少,故C1(CO中C的质量)的值较小,占C12(COx中C的质量)的比例不足1/8。而C2(CO2中C的质量)与C12的趋势趋于一致,均随着温度的升高先增加后减小,当再生温度为150℃时,C2和C12均达到较大值。当再生温度为150℃时,NTP产生的活性物质的利用率较高,去除积碳量较多,再生效果较好。
[Abstract]:Using compressed air as the gas source, a low temperature plasma jet (NTP) regeneration system of exhaust gas recirculation (EGR) test system test EGR regeneration cooler, cooler in the regeneration of different temperatures, the main active substances measured during regeneration (NO2, O3) and the changes of recycled products of COx, analyzes the influence of regeneration the temperature on the regeneration of the EGR cooler. The experimental results show that air source NTP EGR cooler can achieve regeneration in the temperature range of 18~300 DEG C. The regeneration process, O3 and NO2 were decreased with the increase of the temperature, was completely consumed in 150 degrees. The regeneration process produces less CO, so the C1 (quality of CO C the) small value, accounting for C12 (quality COx C) and 1/8. C2 (the ratio of less than CO2 in quality C) consistent with the trend of C12, with the increase of temperature increased first and then decreased, when the regeneration temperature is 150 DEG C, C2 and C12 have reached a When the regeneration temperature is 150 C, the utilization ratio of the active substance produced by NTP is high, the carbon content is more and the regeneration effect is better.
【作者单位】: 江苏大学汽车与交通工程学院;
【基金】:国家自然科学基金项目(51176067) 高等学校博士学科点专项科研基金项目(2010322711014) 江苏省高校优势学科建设项目(PDPA)
【分类号】:TK423
【正文快照】: 引言目前,柴油机以其燃油经济性好、CO2排放低等优点,广泛应用于重型车领域,同时也日益受到轻型车和乘用车市场的青睐。但柴油机空气-燃料的混合方式,导致其PM和NOx的排放高于汽油机。目前各国的排放法规日益严格,这就要求汽车生产厂家减少柴油车PM和NOx的排放。为满足排放法,
本文编号:1434581
本文链接:https://www.wllwen.com/kejilunwen/dongligc/1434581.html